Dispersion in dielectric-lined waveguides designed for terahertz-driven deflection of electron beams

Vasileios Georgiadis, A. L. Healy, Morgan Hibberd, G Burt, S. P. Jamison, Darren Graham

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Abstract

We have developed dielectric-lined rectangular waveguide structures for terahertz (THz)-driven ultrafast deflection of 100 keV electron beams. The structures were designed to achieve THz phase velocity matching with co-propagating electron bunches. The phase-matching capability was experimentally confirmed through time-frequency analysis of the broadband coherent THz transmission measured by electro-optic sampling. The analysis determined both the frequency-dependent propagation constants in the electron interaction region and the propagation characteristics of the integrated THz tapered coupler.
Original languageEnglish
Article number 144102
JournalApplied Physics Letters
Volume118
Issue number14
DOIs
Publication statusPublished - 6 Apr 2021

Research Beacons, Institutes and Platforms

  • Photon Science Institute

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